ast::propagate_nan 命名空间参考

类
struct	allow_efficient_minus
struct	allow_efficient_minus< TimePoint >
struct	has_minus
struct	use_efficient_minus

函数
A_ALWAYS_INLINE double	min (double a, double b)
A_ALWAYS_INLINE double	max (double a, double b)
template<typename T >
std::enable_if<!use_efficient_minus< T >::value, constT & >::type	min (const T &a, const T &b)
template<typename T >
std::enable_if< use_efficient_minus< T >::value, constT & >::type	min (const T &a, const T &b)
template<typename T >
std::enable_if<!use_efficient_minus< T >::value, constT & >::type	max (const T &a, const T &b)
template<typename T >
std::enable_if< use_efficient_minus< T >::value, constT & >::type	max (const T &a, const T &b)

详细描述

传播 NaN 值的数学工具函数